Mt. Fuji & Plate Tectonics?

Mt. Fuji relates to plate tectonics because it was formed when three plates (Eurasian, Pacific, and Philippine plates) met and slid against each other. Mt. Fuji is a fairly young volcano only getting it's current shape about 5,000 years ago.

"It was
a result of a series of volcanic activities by the
Ashitakayama/Ko-Mitake (Small Mitake), Ko-Fuji (Old Fuji)
and Shin-Fuji (New Fuji) volcanoes. The Ko-Mitake volcano is
dormant since 100 thousand years ago. The Ko-Fuji volcano,
which formed the base of the current, Mount Fuji was active
between 100 thousand and 10 thousand years ago. Shin-Fuji
volcano which is responsible for the mountain’s current
shape started to erupt about 10 thousand years ago and
erupted repeatedly for over 100 times during a period of
about 10 thousand years."